org.apache.paimon.mergetree.compact.aggregate

Class FieldPrimaryKeyAgg

java.lang.Object

org.apache.paimon.mergetree.compact.aggregate.FieldAggregator

org.apache.paimon.mergetree.compact.aggregate.FieldPrimaryKeyAgg

All Implemented Interfaces:

Serializable

public class FieldPrimaryKeyAgg
extends FieldAggregator

primary key aggregate a field of a row.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.paimon.mergetree.compact.aggregate.FieldAggregator

fieldType, name

Constructor Summary

Constructors

Constructor and Description
FieldPrimaryKeyAgg(String name, DataType dataType)

Method Summary

Modifier and Type	Method and Description
Object	agg(Object accumulator, Object inputField)
Object	retract(Object accumulator, Object inputField)

Methods inherited from class org.apache.paimon.mergetree.compact.aggregate.FieldAggregator

aggReversed, reset

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FieldPrimaryKeyAgg

public FieldPrimaryKeyAgg(String name,
                          DataType dataType)

Method Detail

agg

public Object agg(Object accumulator,
                  Object inputField)

Specified by:

agg in class FieldAggregator

retract

public Object retract(Object accumulator,
                      Object inputField)

Overrides:

retract in class FieldAggregator